Adjustable extruder cutter fixing mechanism

Abstract

The utility model relates to the technical field of cutter fixing mechanisms, in particular to an adjustable extruder cutter fixing mechanism. According to the technical scheme, the cutter comprises a gear ring, a mounting ring, a support, a mounting sleeve, a clamping sleeve, a mounting plate and a screw rod, the support is arranged at the lower end of the mounting plate, the mounting sleeve is arranged in the support, a cutter body is arranged in the mounting sleeve, the outer side of the upper end of the mounting sleeve is sleeved with the clamping sleeve, and a screw hole is formed in the mounting plate. A screw rod is rotatably mounted in the screw hole, the outer wall of the screw rod is sleeved with a gear ring, an electric push rod is arranged in the mounting plate, a pressing block is arranged at the lower end of the screw rod, and a mounting shaft is arranged in the mounting groove. When the screw rod is meshed through the threads to move longitudinally, the pressing block is pushed to move longitudinally on the cutter body, and the problems that the adjusting speed is low, the production efficiency is affected, a fixing wire is prone to loosening, the position of the cutter is changed, and the product quality is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutter fixing mechanisms, in particular to an adjustable cutter fixing mechanism for an extruder. Background Technique

[0002] The cutter of an extruder is a device component used in the extrusion process, usually made of hard materials, mainly used for shearing and shaping plastics, metals or other materials. In the extrusion process, the cutter of the extruder plays an important role in cutting, trimming or forming the required profile. The cutter needs to be firmly connected to the fixing structure to ensure that it will not loosen or fall off during the working process, so as to avoid damage to the product or safety hazards.

[0003] In the existing adjusting method of the fixing wire of the extruder cutter, the following problems mainly exist: the adjusting speed is slow, which affects the production efficiency, and the fixing wire is easy to loosen, resulting in the change of the cutter position and affecting the product quality. For this reason, we propose an adjustable cutter fixing mechanism for an extruder to solve the existing problems. Content of the Utility Model

[0004] The purpose of the utility model is to propose an adjustable cutter fixing mechanism for an extruder aiming at the problems existing in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an adjustable cutter fixing mechanism for an extruder, including a gear ring, an installation ring, a bracket, an installation sleeve, a clamping sleeve, an installation plate and a screw rod. Brackets are arranged on both sides of the lower end of the installation plate. Symmetrically distributed installation sleeves are arranged inside the brackets. A cutter body is arranged inside the installation sleeves. A clamping sleeve is sleeved on the outer side of the upper end of the installation sleeve. A screw hole is opened inside the installation plate. A screw rod is rotatably installed inside the screw hole. A gear ring is sleeved on the outer wall of the screw rod. Electric push rods which are symmetrically distributed and whose lower ends are connected to the installation sleeves are arranged inside the installation plate. A pressing block located inside the installation sleeve is arranged at the lower end of the screw rod. An installation groove is opened inside one end of the installation ring. An installation shaft is arranged inside the installation groove. A torsion spring connected to the installation shaft and the installation groove is sleeved on the outer side of the installation shaft. A clamping block is arranged on the outer wall of the installation shaft. A compression spring is arranged at the lower end of the installation shaft.

[0006] Preferably, a bearing is embedded in the inner wall of the lower end of the installation groove. A rotating shaft is arranged at the lower end of the compression spring. The lower end of the rotating shaft is rotatably inserted into the bearing. The installation shaft rotates inside the installation groove through the spring and the rotating shaft.

[0007] Preferably, a limiting block located on one side of the clamping block is arranged at the upper end of the installation groove. The limiting block limits the reversely rotating clamping block.

[0008] Preferably, a torsion ring is provided at the upper end of the screw rod, and a clamp is sleeved on the outer wall of the mounting sleeve. When rotating the screw rod, grasping the torsion ring facilitates applying a rotational force, and the clamp applies additional fixation to the closed mounting sleeve.

[0009] Preferably, the clamping sleeve is in a conical tube shape, and the lower end of the pressing block is slidably installed inside the upper end of the clamping sleeve. The conical tube shape of the clamping sleeve makes it easier to clamp and fix the outer wall of the clamping sleeve due to the gradually decreasing inner diameter at the same horizontal height after it descends.

[0010] Preferably, symmetrically distributed guide rods are provided at both ends of the mounting sleeve, and sliding sleeves are embedded and installed inside the brackets, and one end of the guide rod is slidably inserted into the inside of the sliding sleeve. The mounting sleeve slides inside the sliding sleeve through the guide rod to guide the sliding of the mounting sleeve.

[0011] Preferably, a spring is sleeved on the outer wall of the guide rod, and both ends of the spring are respectively connected to the mounting sleeve and the bracket. When the extrusion force on the mounting sleeve is lost, the elastic force of the spring pulls the mounting sleeve to move away from each other, so that the mounting sleeve automatically separates after losing the extrusion, facilitating the storage and retrieval of the cutter body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the electric push rod is used to push the clamping sleeve to descend, relatively squeeze the mounting sleeve, reserve an adjustment gap for the cutter body, the pressing block moves longitudinally, the cutter body is squeezed by the pressing block, or the pressing block is lifted to squeeze the cutter body from bottom to top. The position of the pressing block is adjusted by rotating the screw rod. When the screw rod rotates, it drives the gear to rotate, and the rotating process squeezes the clamping block to prevent the reverse rotation of the toothed ring. When the toothed ring needs to rotate in the reverse direction, the mounting shaft is lifted by pulling to drive the clamping block to be misaligned with the toothed ring, and the toothed ring realizes reverse rotation, making the cutter body stable after adjustment and the adjustment convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is the rear view three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 3 is the main sectional three-dimensional structural schematic diagram of the clamping sleeve of the present utility model;

[0017] Figure 4 is the top view three-dimensional structural schematic diagram of the mounting ring of the present utility model;

[0018] Figure 5 is the front view three-dimensional structural schematic diagram of the mounting shaft of the present utility model.

[0019] Reference numerals: 1, torsion ring; 2, toothed ring; 3, mounting ring; 4, bracket; 5, clamp; 6, cutter body; 7, mounting sleeve; 8, guide rod; 9, mounting plate; 10, ferrule; 11, sliding sleeve; 12, spring; 13, electric push rod; 14, pressing block; 15, screw; 16, screw hole; 17, clamping block; 18, mounting shaft; 19, torsion spring; 20, mounting groove; 21, compression spring; 22, bearing; 23, rotating shaft; 24, limit block. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] As Figures 1 - 5 shown, a fixed mechanism for an adjustable extrusion cutter proposed by the present invention includes a toothed ring 2, a mounting ring 3, a bracket 4, a mounting sleeve 7, a ferrule 10, a mounting plate 9 and a screw 15. Brackets 4 are provided on both sides of the lower end of the mounting plate 9. Symmetrically distributed mounting sleeves 7 are provided inside the brackets 4. The cutter body 6 is provided inside the mounting sleeve 7. A ferrule 10 is sleeved on the outer side of the upper end of the mounting sleeve 7. A screw hole 16 is opened inside the mounting plate 9. A screw 15 is rotatably installed inside the screw hole 16. A toothed ring 2 is sleeved on the outer wall of the screw 15. Electric push rods 13 that are symmetrically distributed and whose lower ends are connected to the mounting sleeve 7 are provided inside the mounting plate 9. A pressing block 14 located inside the mounting sleeve 7 is provided at the lower end of the screw 15. An installation groove 20 is opened inside one end of the installation ring 3. An installation shaft 18 is provided inside the installation groove 20. A torsion spring 19 connected to the installation shaft 18 and the installation groove 20 is sleeved on the outer side of the installation shaft 18. A clamping block 17 is provided on the outer wall of the installation shaft 18. A compression spring 21 is provided at the lower end of the installation shaft 18;

[0022] A bearing 22 is embedded in the inner wall of the lower end of the installation groove 20. A rotating shaft 23 is provided at the lower end of the compression spring 21. The lower end of the rotating shaft 23 is rotatably inserted into the bearing 22;

[0023] A limit block 24 located on one side of the clamping block 17 is provided at the upper end of the installation groove 20;

[0024] A torsion ring 1 is provided at the upper end of the screw 15. A clamp 5 is sleeved on the outer wall of the mounting sleeve 7;

[0025] The ferrule 10 is in the shape of a conical cylinder, and the lower end of the pressing block 14 is slidably installed inside the upper end of the ferrule 10;

[0026] Both ends of the mounting sleeve 7 are provided with guide rods 8 symmetrically distributed. Inside the brackets 4, sliding sleeves 11 are embedded and installed. One end of the guide rod 8 is slidably inserted into the inside of the sliding sleeve 11;

[0027] A spring 12 is sleeved on the outer wall of the guide rod 8. The two ends of the spring 12 are respectively connected to the mounting sleeve 7 and the bracket 4;

[0028] Based on the implementation steps of Embodiment 1: The outer wall of the cutter body 6 and the inner wall of the mounting sleeve 7 are both hexagonal. The upper end of the cutter body 6 is inserted into the inside of the mounting sleeve 7. The electric push rod 13 operates to drive the clamping sleeve 10 to descend. The clamping sleeve 10 is clamped on the outside of the mounting sleeve 7. During the descending process, the outer wall of the mounting sleeve 7 at the same horizontal height as the clamping sleeve 10 is gradually squeezed by the inner wall of the clamping sleeve 10, and the clamping sleeve 10 moves relatively. Before the clamping sleeve 10 closes, rotate the torsion ring 1 to rotate the screw rod 15. The screw rod 15 pushes the pressing block 14 to descend, pushing the upper end of the inserted cutter downward to finely adjust the position of the cutter. When the toothed ring 2 rotates, the driving force acts on the clamping block 17, thereby driving the mounting shaft 18 to rotate. The mounting shaft 18 exerts a squeezing force on the torsion spring 19. When the clamping block 17 corresponds to the tooth groove inside the toothed ring 2, through the elastic force of the torsion spring 19, the mounting shaft 18 is pushed to rotate back, driving the clamping block 17 to reset. When the toothed ring 2 rotates in the reverse direction, because the clamping block 17 is limited by the limiting block 24, the reverse rotation of the clamping block 17 is avoided, and the loosening of the cutter body 6 is avoided, and the stability of the cutter body 6 is improved after adjustment;

[0029] When the cutter needs to be adjusted to descend, after pulling and installing, apply an upward pulling force to the compression spring 21 to drive the clamping block 17 to disengage from the inside of the toothed ring 2. At this time, the toothed ring 2 can be effectively rotated in the reverse direction. After adjustment, the electric push continues to descend and clamps the mounting sleeve 7, realizing the fixed installation of the cutter body 6. By rotating the sleeved clamp 5, the setting of the clamp 5 can be set as needed. The redundant design mainly improves stability. The adjustment of the cutter body 6 is convenient, stable after adjustment, and the quality of the product during processing is prevented from changing due to the loosening of the cutter.

[0030] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

Claims

1. An adjustable cutter fixing mechanism for an extruder, comprising a toothed ring (2), a mounting ring (3), a bracket (4), a mounting sleeve (7), a clamping sleeve (10), a mounting plate (9) and a screw (15), characterized in that: On both sides of the lower end of the mounting plate (9), brackets (4) are provided. Inside the brackets (4), symmetrically distributed mounting sleeves (7) are provided. Inside the mounting sleeves (7), cutter bodies (6) are provided. Outside the upper end of the mounting sleeve (7), a clamping sleeve (10) is sleeved. Inside the mounting plate (9), a threaded hole (16) is formed. Inside the threaded hole (16), a screw rod (15) is rotatably installed. An external gear ring (2) is sleeved on the outer wall of the screw rod (15). Inside the mounting plate (9), symmetrically distributed electric push rods (13) are provided, and the lower ends of which are connected to the mounting sleeves (7). At the lower end of the screw rod (15), a pressing block (14) is provided inside the mounting sleeve (7). Inside one end of the mounting ring (3), a mounting groove (20) is formed. Inside the mounting groove (20), a mounting shaft (18) is provided. An outer torsion spring (19) that is connected to the mounting shaft (18) and the mounting groove (20) is sleeved on the outer side of the mounting shaft (18). A clamping block (17) is provided on the outer wall of the mounting shaft (18). At the lower end of the mounting shaft (18), a compression spring (21) is provided.

2. The adjustable cutter fixing mechanism of an extruder according to claim 1, characterized in that: A bearing (22) is embedded in the inner wall of the lower end of the mounting groove (20). At the lower end of the compression spring (21), a rotating shaft (23) is provided. The lower end of the rotating shaft (23) is rotatably inserted into the bearing (22).

3. An adjustable cutter fixing mechanism for an extruder according to claim 1, characterized in that: At the upper end of the mounting groove (20), a limiting block (24) is provided on one side of the clamping block (17).

4. An adjustable cutter fixing mechanism for an extruder according to claim 1, characterized in that: At the upper end of the screw rod (15), a torsion ring (1) is provided. An outer clamping hoop (5) is sleeved on the outer wall of the mounting sleeve (7).

5. An adjustable cutter fixing mechanism for an extruder according to claim 1, characterized in that: The clamping sleeve (10) is in a conical shape, and the lower end of the pressing block (14) is slidably installed inside the upper end of the clamping sleeve (10).

6. The adjustable cutter fixing mechanism of an extruder according to claim 1, characterized in that: At both ends of the mounting sleeve (7), symmetrically distributed guide rods (8) are provided. Inside the brackets (4), sliding sleeves (11) are embedded. One end of the guide rod (8) is slidably inserted into the sliding sleeve (11).

7. The adjustable cutter fixing mechanism of an extruder according to claim 6, characterized in that: An outer spring (12) is sleeved on the outer wall of the guide rod (8). The two ends of the spring (12) are respectively connected to the mounting sleeve (7) and the bracket (4).

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